Ribbon-reversing mechanism for type-writers.



W. P. KIDDER.

Patented Jul)1 21, 1914.

l/WE

ATTORNEYS RIBBON REVERSING MEOHANISM POR TYPE WRITERS. APPLIOAT'ION rILBD JUNE 24, 1905. RENE-WED DBO. 1s, 1913. 1,104,359'.

U N llldll) STATES PATENT OFFICE.

ASSIGNMENTS, TO THE NOISELESS TYPE'WRITEB COMPANY, OF MIDDLETOWN, CON- NECTICUT, A. CORPORATION OF CONNECTICUT.

RIBBON-REVERSIN G MECH ANISM FOR TYPE-WRITERS.

Application tiled June 24. 1905, Serial No. 266,815.

7k, uit 'fr/1 om 'it may 'oon/fern.'

lle u. known that I WELLINGTON P. Kin

man. residing at Boston, in the county ofy Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Ribbon-Revereingr Mechanism for 'lvvpe-ll/riters, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use tle same.

'l'hia invention relates to typewriters and, while capable of being employed in many forms of machines, is especially adapted for use in machines known as silent typewriters, and has Yfor one of its objects to provide means whereby the feed of the ribbon may he reversed.

A\nother object is the provision oi mechanism adapted to operate silently to .'-hill the ribbon feed reversing mechanism in machines.' of the above general type.

Ut her objects will be in part obvious and in part pointed out hereinafter.

The invention accordingly consists in 'the features of construct-ion, combinations of elements and arrangement of parts which will be exemplified in the mechanism hereinafter described, andthe scope of the application 'of which will be indicated in the following claims.

ln the accompanying drawing wherein is illustrated one of various possible embodiA ments of my invention. Figure l isaa eleva tion of the sume partly in section, some of the parts heiner broken a wa v. Fig. 2 is a sectional View of a portion of the same. Fig. 3 is an elevation partly m .section showing the worm mechanism adapted to operate the rih hon shafts.

Similar reference characters refer to similar parte throughout the several views of the drawing.

'As tending to render better understood certain of the various features of my invention, it may here he noted that, in a typewriter of thel above type, Vit is essential to no construct the machine an to enable it to he operated in all respects with the production of as little noise as ossible. l ha ve, thereforo, found it dcsira le Specification of Letters latent.V

Patented July 21, i914. Renewed December 13, 1913. Serial No. 807,564.

`toed of the ribbon. The above and other advantages are secured in constructions of the nature of that hereinafter described.

Referring now to the drawing, a shaft 1, suitably journaled in the frame of the mawheel 2 hai/inir pivoted upon a ed t0 engage.

teeth 3 with which a pawl 4. 'reciprocating arm 5 is adapt- Riprocating arm 5 is rotatably mounted in the frame at 6, and is adapted to be actuated by the key-levers' acting,r upon the universal bar or equivalent part of the machine, to which said arm 5 is connected.

Mounted upon each end of shaft 1 are worms 7 and 8 a 'laptcd to co-act with worm wheels il and lf). respectively, fixed t0 hollow eliaitsy Il and l2 suitably journaled in the frame of the machine. worms i) and l0 are Areverfsely arranged for the purpose of driving shafts 11 and l2 in opposite directions. Encireled bD each of hollow shafts 11 and 12 are spind es 13 and 14 eaclihavinr a shoulder 15 and 16, upon which are rotatably mounted ribbon spools l? and 18 adapted to carry the ribbon 19, said shafts being adapted to rotate the spools to feed the ribbon alternately from one Yapool to the other. One of the side each ribbon-spool is provided with a pluto provide a silenlty 'j rality o f openings arranged comentrically thereon. any one of which is adapted to he engaged by a pin 2() projecting f rom an integral arm 2l carried by each of the hollow shafts 1l and l2. Cam Shaft Q2 journaled in the frame ot the machine and extending transversely thereof is provided with an op,- i-rating handle and a pair of ram-faces '2l and 25 angularly disposed with respect to each other. [n the present instance VI have shown cam-facce 24 and 25 arranged at au ,ingle of about one hundred and twenty degrees from each other; the angle is however, immaterial as will be. apparent hereinafter.` Spiudles 13 and 14 are adapted to rest on cam-shaft. 22, one end of one of said spindles engaging the cam fare 24, and the other resting upon the periplu-rjY of sh a ft b v reason of the angular' arrangement of can faces 24 and as abore,efqdained. At this point il.

operating nwchanif-:m designed to reverse tl f, i may be notil that ram fact-:1 "2l and 2.7 may he spirals of members of K chine, is provided at one end Witha ratchet i .hand

be arranged atvany angle on shaft 22 such that but one of the spool supporting spindles can rest at a Given time upon a cam face. vVhen either of spindles 13 and 14 is in engagement with a camface'of shaft 22, the ribbon-spool carried thereby is in itsloWer- .most position, as vshown at the left of Fig. 1

of the drawing, and in operative engagement with pin 2O positioned uponl arm 21 of with any frequently moving'part ofthe ma chine. .lVornis l7 and 8 engaging worm wheels S) and lOrotate shafts 11 and'12'in opposite directions.' As shown at the left sident-Fig. 1 of the draw-ing, spindle i3 is .in engagement with the cam face 24 and spool. 17, is therefore,lin engagement with pin20 4mounted upon hollowr shaft y11.` The spool at' the opposite side is4 therefore out ofengagement with itsfcoacting pin by, reason-of spindle ldjfrestshaft 22. Spoon ing on the periphery of `l7 `is thereftne'the receiving ool 18 the feedingr spool.

the direction of the feed of the ribbon,'it is only necessary to rotate shaft 22 by means of handle 23', ythereby raising spindle 13 and causing a disengagement of spool 17 from' pin'20 and simultaneously bringing carni-ace 25 'into engagementl with spindle lel, allowing tl1e` ribbon spool 18 to engage with the pnandbe thereby rotated to lWind the ribbonin anopposite'direction. It' will be noted that,by reason of the spindles ld3 and 111 resting` constantly on cam shaft 22 and beingadapted alternately to be recipror Ii'by avv-partial.revolution of said shaft, no concussion or impact. .occurs during the reversing ofjthe feed 4of the ribbon and it should be turther obsci ved .that on account spool `and of thel balancing action ofthe ribbon spools.

together with their respective spindles, such operation is attended by the expenditure of very little power.

It. will thus be seen that I'have constructfed a device 'wherein the objectsof my 1nvolition arevattained and one which iti Ycharacterized by simplicity, efficiency andy ease of opcrationthe ribbon-feed shi t'ting mechanism being silentlv reversed to change the direction of feed of the inliingribbon.

While I have shown-and dcfazribed my invention'in connection wil h a typewrilingnia of my inven'tion'exclusivel'y the art To reverse cliine of the above type, I do not wish to be understood as limit-.infir the employment to machines of such type as it is adapted for use as to -Amany of itsfeatures ,inmany other foms of machines Aalthough of peculiarvl value in the; relation shown.

As' manyv changes tion couldbe made Without departing `from the scope thereof, I'in-tend tliat'all matter` containedin the above description or shown in the accompanyingv drawings shall be in- `Iterpreted'as illustrative and not in a limiting sense.

, Iaving described my invention, what I claim as ,new and desire tovsecure by Let.- ters Patent is 1. In a'typewriting machine,1in combination, a ribbon, apool upon which said ribbon is adapted tobe Wound, means adapted to carry vsaid ribbon spool, means'having' its axis parallel with the axis of saidl car- ,rying means'ada ted to rotate said spool,

and cammeans or causing a longitudinal movement of one of said means with respect to the other whereby said spool is disconnected from its rotating itiean's.

` 2. In a typewriting machinefkin eombination, a' ribbona spool on which said ribbon is wound, vertically disposedineans for supporting sai'd spool,ineans parallel to said supporting means' for rotating said spool,',and rotatably mounted 'cam means .in engagement .with and adapted tol cause arelative movement of one of said means to disengage said spool from said rotating means.

3. In a typevvriting machine, in combination, a ribbon, a spool on which said ribbon is Wound, means for supporting said spool,

rotatable means engaging said 'spool and adapted to rotate the same to feed the ribbon, said supporting means adapted to be voperated upon to shift said spool whereby said rotatable driving means is disengaged therefrom, and aA 'cani for operating said supporting means.

. 4. In a .typewriting machine, in ooinbinal ltion With a ribbon-spool of a vertirall y disposed spindle adapted to support the same, means actuated by a of the machine adapted to drive said spool, and means adapted to-lift said spindle and thereby cause a lateral movement of said spool todisengage said driving means therefromp,- i

'5. In a typewiiting iniu'l.ine,in combimtion, a ribbon, aspool upon which said spindle on which saidhspimlA .is mounted, means surroundii'ig: said spool adapted to be actuated by the key'levers of the machine todrive said spool, and means adapted to constantly moving part riblbon is adapted to' he wound, an upright could be inadein the ,l vabove construction and manv'v apparently 'widely lditieren't embodiments `of my invenrespective support, and means adapted to' shift both ribbon spools in opposite direc-j tions to engage anddisengage the 'respec-` tive driving mechanisms.

7. In a` typcivriting machine, in combina-fY tion, a ribbon, a pair of ribbon spools, sep- 1 arate means for supporting each of said spools, separate. means for rotating each ribbon spool about its support to feed the; ribbon, and'means connecting said last men-l ltioned means for shifting the ribbon spools. with respect to the rotating means to. dis-f' engage said parts. l

8. In a typeivriting machine, in combination, a ribbon, a pair of spools, a separate support for each spool, means Vadapted to engagieach ribbon spool to drive the same to feed the ribbon, and means adapted `to engage said .supports to shift the ribbon spools in opposite directions to them" from the driving means.l Y LTn atypewriting machine, in combinadisengage tion, a pair of ribbon spoolsand, a ribbon adapted to be fed from one to the other, vertically disposed ribbon spool supports located at opposite sides of the machine, separate means adapted to drive each spool, and means forshifting both spools vertically whereby the spools are engaged and disengagedA with their' respective driving I.mechant-airis i'n order to reverse'the feed of the ribbon. f

if). ln .a typewriting machine, the eombination of a ribbon, a pair of separate upright ribbon-spools, a pair of ribbon-spool supports, separate means adapted todrive, cach ribbon spool, anda rotatably rnoiintedf cani shaft adapted to Shift both i`ibbon spools in opposite directions whereby one? ofl said ribbon-spools is engaged with its] driving means and the other of said drivingunieans is disengaged from its drivingy ll. ln a typewriter machine, the combination of a ribbon, a pair of ribbon-spools, a pair of. spindles eachadapted to rotatably'I support one of said ribbon-spools,se arate. i'nff'ans adapted alternately todrive each ribbon-spcol, and means operating upon each spindle toshift both ribbon-spool;-: laterally ril'ilain-:ipools' is engaged Ywith its driving means and the other of said. ribbon-Sprints disengaged from its driving nnans,

l2. lu a typcvxrit-ing inachincfthe combinatirn of n. ribbon, a pair of ribbonfspools,

one-of said ribbon said spindles to shift both ribbon-spools laterally in opposite directions whereby one of said ribbon spools is engaffed with its driving means and the other oi said ribbon spools is disengaged .from its driving means.

i3. ln a typewritingr machine, the combination of a ribbon, a pair of ribbonfspools, a pair of spindles each adapted to rotatably support one of said ribbon-spools, means adapted alternately to drive each ribbonspool and a cam shaft operating upon both spindies to shift both ritiboiispools laterally in opposite directions whereby one of said ribbon-spools is engaged with its driving means thereby changing the direction of the feed of said ribbon. i

` 14. In, a typewriting machine, the combination of a ribbon, a pair of ribbon-spools', a pair ot' spindles each adapted to rotatably driving means, one foreach ribb'on-spool, said driving means being adapted to rotate in opposite directions and also adapted alternately to be engage-,d with' Said ribbon spools, and means forshifting both ribbon .spools in opposite v.directionsto .engage one of said. spools with its driving meansl and vto disenga fe the other ofsaid ribbon spools from itscriving ineanswliereby the feed of the ribbon is reversed.

ln a typeivriting machine, the combination of alrihbori, a pair lof ribbon-spools, a' pair 'ot' si'iindleseach adapted to rotatabl y support one of saidribboirspools, a Ypair of driving means each adapted to actiiatc one o'f'said ribbon-spools, said driving means rotating in .opposite directionsand adapted alternateiy tofbe engaged with one of said ribbon spools and a cam shaft for shifting both ribbon-spools in' lopposite directions to engage one of said ribbon-spools with its dri-ving means and disengage the other of said spools from its driving means whereby the feed of the ribbon is reversed.

lV. ln a typewriting n'incliine,"the combinai ion of a ribbon, a pair of.iibl ion-spo ls. a pair of I'ibbon-si'iool supports, a pair of spindles ea'cli adapted to rotatably support Imole, a pair' of hollow` .shafts each encircling one of said spindles, said shafts being adapted alternately to engage 'with oneof-sa id ribbon-spools, means For driving said shafts in oppositev direc-v tions, and 'meansoperaling upon said hspin- :y dice; adapted to shift.. both ribbon-spools inr in opposite directionsv whereby one of said ing nml-bine, the combi-i1 .support one of said ribbon-spools, apair of loo ' driving Shaft nation .of a ribbon, a pair of .ribbon-spools,-

a pair ofjspindles each adapted to rotatably- `supportfone of-said ribbon-spools, Ya -pai'r ofhollow' shafts each encircling-one of said spindles, said shafts` being adapted alternately to engage vv-ithfa ribbon spool, means for driving ,said shafts :inopposite directions,` Ianda cam 'shaft operating upon said spindles adapted'- simultaneously to shift both ribbon spools laterally"inopposite di; rections to engageone'` of said spools with its driving shaft andsimultaneously to diseiigage the other of said spools from its is reversed. f.

18. Ina typeaviiting machineythe combi-y nationof a ribbon, a pair of'ribbon spools,

apairI ofv spindles adapted to rotatably sup .portj'each'A ribbon'- spoola pair of hollow shafts'each-encircling one of said spindles,

siii-d Shafts. -beinU-gadapted alternately to enbon spool, and a shaft havA rib ,ingcanirfacjes angnlarly arranged vvith respe'ct ,to'eac'hxotjlier adapted to operate said spindles simultaneously tol shift 'said ribbon` speels laterally -in opposite directions to engage-foneof said spoolswitli its driving `alternately to engage o ne of Said spindles,

shaft,v and sini'ultaneoiisly to disengage the otherof'said spools from 4its drivingr shaft whereby the feedofthe ribbonis reversed. i 19.ln ant-'ypewriting iriaeliine, the' combination of a ribbon, a pair of ribbon spools,

a lpair of'spijndles one for each ribbon spool, .a pairfof hollow shafts encircling each of said spindles', co-aetingmeans located upon each shaft adapted alternately to engage with said 'ribbon-- spools, .mea-ns for driving saidshafts vin opposite directions, va" shaft having a vpairof-cainfaces arranged at an angle to 'each other, said cani faces adapted means for rotating said. cam shaft io shift v both ribbon spoolsflaterally in opposite directions to 'engage'one-of ribbon spools With its o o-acting means `and sin'iiiltaneoosly to disengage the'otherwofsaid ribbon spools from its. cra-actingineansfwhereby the feed fof said ribbonl .is reversed;

` Q ()In a 'typewriting machine, the combination of a ribbon, a pair-of ribbon spools,

a pair of spindles one for each ribbon spool', a pair fof" hollow shafts encircling each of said spindles. (ro-acting means mounted upon- '.each `shaft adapted u alternately to engage Y iv ith said ribbonspools, means. for' driving said shafts- -ir'i'bppositefdirections, a rota'- tably mounted 'shafthjaving cam. faces arrangedl 'singularly thereon, said cam facesbe-v ing adapted alternately to engage? said spindles, and i'neans for rotating `saidearn shaft' to shift. both of said ribbon "spools in opposite directions to thereby-engage one of said ribbon spoolsv `with its` 4Cty-acting means,

and simultaneously to disengage the 'other wherebyV 'tiiebfeed 'of the ribbon of said spools' from its, co-acting means whereby the feedof vsaid ribbon is revers ed.

2l. ln a typewritingmahine, the combination of a "',bboinga pair of ribbon spools, a

pair of s nix". s' one for each ribbon spool, a

pair of holloiv shafts encircling each of said spindles, o o-acting means locatednpon each lof said shafts adapted alternatelyto engage` 'with said ribbon spool, a pair of Worms adapted to drive'said shafts in opposite dii vrections, a` sliaft having` a pair of cam faces angiilariy arranged With respect .to 'each other, said cani faces `bein adapted alter nately to engage each of sai spindles, means for, 'rotating said cam shaft to shift both of said ribbon spools laterally in opposite directions to. engage one of said ribbon said spindles, cri-acting` means located upon .each of said shafts adapted alternately to engage with each ribbon 'spool, a pair of worms adapted to drive saidshaf'ts in opposite directions, a sliafthaving-a pair offcain;

faces angularly arranged with. respect to,.- Acach other, vsaid caniface'skbeing adjap'tedj alternately to eiigageysaid Spindlesmeans for rotating said Aca'in shaft to' shift both of said ribbon spools laterally in opposite directions to 'disenga'ge one of said-ribbon spools from the `co-alcting means and simuli:

ta'iieously to engagethe other of said spools'.

with its (3o-acting nioans whereby the feed of said ribbon-is reversed, andpawl and ratchet mechanism adapted to operate-each. of said worms.

23.111 a typewriting machine, in combination, a pair'of spindles each provided'with a shoulder, a pair of ribbon spools each rofl tatabl'y mounted iipon one of'said spindles and adapted torest upon one of' said slioiil ders, a pair of hollow driving-shafts each encircling one of said spindles, co-acting means located upon each' shaft adapted alioriiatelyl to operate one' of said ribbon spools,` said driving shafts adapted to rotate said shafts in opposite directions, vand ashaft having,r singularly arranged nain faces adapted alternately to engagewith said spindles,

a .pair of Worms, one for each of' and means'adapted: to operatesaid last-inen-'gtioiicd shaftsto cansea longitudinal movement of one of said'spindles 'in one direction. to die-.engage the ribbon spool inoiintedthereon from its eoactirig means 'and to allow a] longitudinal movement of. the other of said spindles in anopposite dircctibn' to engage the other of said ribbon spools mounted t-hereon with its errar-,ting means, and thereby reverse the direction of the feed of said ribbon.

24. In a typewriting machine, in combination, a pair of spindles each provided with a shoulder, a pair ot' ribbon spools each rotatably mounted upon one of said spindles and adapted to rest upon one oi said shoulders, a pair ot' hollow driving shafts each enrirrling one o't' said spindles, co-aeting means located upon each shaft adapted al.- ternately to engage with one of said ribbon spools, a pair of Worms one for each of said driving shafts adapted to rotate said shafts in opposite directions, a shaft having angularly arranged Cam faces adapted alternately to engage with one of said spindles, means adapted to operate said last-mentioned shaft to cause a longitudinal movement of one of said spindles in one direction to disengage the ribbon .spool mounted thereon from its teo-acting means and to allow a longitudinal movement of the other of said spindles in an opposite direction to engage the other of said ribbon spools mounted thereon with its coacting means and thereby reverse the direction of the feed of said ribbon, and pawl and ratchet mechanism adapted to drive each of said worms.

25. In a typewriting machine, the combination of a pair of ribbon spools, a shouldered spindle sup` ortin each spool, a drivingr shaft for eaeii spoo having means for engaging the same, and means for raising one spindle to disengage the spool from its driving shaft and simultaneously allow the other spindle to fall by gravity, thereby engaging its spool with the other driving shaft.

2G. In a typewriting machine, the combination of a pair of ribbon spools, a shouldered spindle supportinl each spool, a driving shaft for each spoo having means for engaging the same, and a cam shaft interposed in the support of said spindles adapted when rotated to raise one spindle and allow the other to fall by gravity, Whereby one spool is disengaged from its driving shaft and the other spool engaged with its driving shaft. 4

In testimony whereof I aiix my signature, in the presence of two witnesses.

WELLINGTON PARKER KIDDER. W itnesses A. WHrrE, C. H. WILSON. 

